| Property | Specification (Polyethylene Glycol - PEG) |
| Appearance | Colorless, viscous liquid or white waxy solid (depending on molecular weight) |
| Color | Colorless |
| Odor | Odorless |
| Molecular Formula | (C?H?O)n |
| Molecular Weight | Varies (depending on grade, typically 200 to 8000) |
| Density (at 25°C) | 1.125 - 1.135 g/cm³ (liquid) |
| Boiling Point | 280°C - 450°C (depending on molecular weight) |
| Freezing Point | -10°C to 70°C (depending on molecular weight) |
| Flash Point | > 200°C (depending on grade) |
| Solubility | Soluble in water, alcohols, and acetone |
